internal audit

An internal audit is a planned, evidence-based evaluation of whether laboratory activities meet selected requirements and are implemented effectively. It compares actual practice with defined criteria, which may include procedures, regulatory obligations, and accreditation requirements. Audits can follow a specimen through the whole pathway, focus on one process, or examine a cross-cutting topic such as document control or staff authorization.

A useful audit programme considers risk, previous findings, changes, and the importance of the work. Auditors need suitable competence and sufficient independence from the activities examined. Gather evidence through records, observation, and discussion, recognizing that sampling has limitations. Report findings clearly, agree responsibilities for follow-up, and verify action effectiveness. An audit is not merely a checklist exercise or a substitute for routine supervision.

Internal audits give accreditation assessors evidence that the laboratory can identify its own weaknesses and maintain oversight between external visits. Coverage should reflect actual services, locations, and working patterns. Repeated findings suggest that closure has not been effective. Feed significant themes into management review so resources and leadership decisions address issues beyond individual departments.